21999852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1387

約数の個数: 72

約数和(自身を含む): 64553216

約数和(自身を除く): 42553364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 67, 84, 126, 134, 201, 252, 268, 402, 469, 603, 804, 938, 1206, 1303, 1407, 1876, 2412, 2606, 2814, 3909, 4221, 5212, 5628, 7818, 8442, 9121, 11727, 15636, 16884, 18242, 23454, 27363, 36484, 46908, 54726, 82089, 87301, 109452, 164178, 174602, 261903, 328356, 349204, 523806, 611107, 785709, 1047612, 1222214, 1571418, 1833321, 2444428, 3142836, 3666642, 5499963, 7333284, 10999926, 21999852]

約数ペア:

[(1, 21999852), (2, 10999926), (3, 7333284), (4, 5499963), (6, 3666642), (7, 3142836), (9, 2444428), (12, 1833321), (14, 1571418), (18, 1222214), (21, 1047612), (28, 785709), (36, 611107), (42, 523806), (63, 349204), (67, 328356), (84, 261903), (126, 174602), (134, 164178), (201, 109452), (252, 87301), (268, 82089), (402, 54726), (469, 46908), (603, 36484), (804, 27363), (938, 23454), (1206, 18242), (1303, 16884), (1407, 15636), (1876, 11727), (2412, 9121), (2606, 8442), (2814, 7818), (3909, 5628), (4221, 5212)]